Gülesin Sena Daş

Dr. Gülesin Sena Daş

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 March 2019 in Mathematics
Verified
Journal Article
Open access
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ATAhmet Kursad Turker
Ahmet Kursad Turker
AAAdnan Aktepe
Adnan Aktepe
AİAli Fırat İnal
Ali Fırat İnal
OEOlcay Ozge Ersoz
Olcay Ozge Ersoz
GDGülesin Sena Daş
Gülesin Sena Daş
BBBurak Birgören
Burak Birgören
The wide usage of information technologies in production has led to the Fourth Industrial Revolution, which has enabled real data collection from production tools that are capable of communicating with each other through the Internet of Things (IoT). Real time data improves production control especially in dynamic production environments. This study proposes a decision support system (DSS) designed to increase the performance of dispatching rules in dynamic scheduling using real time data, hence an increase in the overall performance of the job-shop. The DSS can work with all dispatching rules. To analyze its effects, it is run with popular dispatching rules selected from the literature on a simulation model created in Arena®. When the number of jobs waiting in the queue of any workstation in the job-shop falls to a critical value, the DSS can change the order of schedules in its preceding workstations to feed the workstation as soon as possible. For this purpose, it first determines the jobs in the preceding workstations to be sent to the current workstation, then finds the job with the highest priority number according to the active dispatching rule, and lastly puts this job in the first position in its queue. The DSS is tested under low, normal, and high demand rate scenarios with respect to six performance criteria. It is observed that the DSS improves the system performance by increasing workstation utilization and decreasing both the number of tardy jobs and the amount of waiting time regardless of the employed dispatching rule.

22 June 2021 in International Transactions in Operational Research
Verified
Journal Article
Closed access
PDF file
GDGülesin Sena Daş
Gülesin Sena Daş
BABüşra Altınkaynak
Büşra Altınkaynak
TGTolunay Göçken
Tolunay Göçken
ATAhmet Kursad Turker
Ahmet Kursad Turker

2 June 2016 in Neural Computing and Applications
Verified
Journal Article
Closed access
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GDGülesin Sena Daş
Gülesin Sena Daş

24 May 2023 in Gazi University Journal of Science
Verified
Journal Article
Closed access
PDF file
TTTaha Teti̇k
Taha Teti̇k
GDGülesin Sena Daş
Gülesin Sena Daş
BBBurak Bi̇rgören
Burak Bi̇rgören
The development and launch of communication satellite projects pose significant challenges and costs. The expenses can range from several hundred million dollars, contingent on factors such as mission objectives, satellite system size and complexity including the launch vehicle, and ground infrastructure. Satellites must be designed to withstand harsh conditions in space, such as the extreme temperatures, radiation, and other hazards, while delivering reliable communication services to its users. However, once a satellite is launched, physical maintenance interventions become infeasible in the event of technical problems. Thus, reliability is a critical aspect for these expensive systems. This study aims to minimize the cost of a high-tech communication satellite by addressing design considerations that meet customer reliability requirements without exceeding power and redundant equipment limits. To achieve this goal, we propose an integer non-linear programming model in this research. To solve the satellite design problem, we adopt a two-stage solution approach. Conventional industrial practices in satellite design often involve iterative attempts to determine the redundancy level of onboard units based on customer reliability requirements. These processes rely heavily on the experience of design engineers who evaluate a limited number of alternatives to determine the number of redundant units, resulting in sub-optimal outcomes. In contrast, our proposed approach systematically handles the problem and yields optimal results. Our findings demonstrate that the proposed two-phase approach can achieve optimal redundancy levels within seconds.

29 December 2023 in Journal of Turkish Operations Management
Verified
Journal Article
Closed access
MYMurat Yeşi̇lkaya
Murat Yeşi̇lkaya
GDGülesin Sena Daş
Gülesin Sena Daş
MYMehmet Fatih Yaşi̇n
Mehmet Fatih Yaşi̇n
Dünya nüfusunun artması ve teknolojik gelişmeler hızlı kentleşme ve sanayileşmeye yol açmıştır. Ancak artan sanayileşme nedeniyle ortaya çıkan çevre sorunları daha büyük bir endişe haline gelmiştir. Günümüzde birçok ülke, üretime bağlı çevre sorunlarını ortadan kaldırmak için Döngüsel Ekonomi politikalarıyla temiz ve sürdürülebilir üretimi desteklemektedir. Bu ülkeler, Döngüsel Ekonomi bağlamında çeşitli endüstrilerde Endüstriyel Simbiyoz (ES) uygulamalarını desteklemektedir. Orman ürünleri endüstrisi, Dünyadaki başarılı ES uygulamalarının odak noktasındaki sektörlerden biridir. Bu sektörün doğal hammaddelere bağımlılığı, orman varlığının yüksek olduğu ülkeler için bu sektörü daha kritik hale getirmiştir. Bu çalışmanın amacı Türkiye'deki orman ürünleri endüstrisinin ES’nin uygulanabilirliğini tartışmaktır. İlk olarak orman ürünleri endüstrisine dayalı Dünya'da yapılmış iyi ES uygulamalarını incelenmiştir. Ardından, bu ES ağlarındaki işbirlikleri ve potansiyel malzeme, yan ürün ve atık akışlarını belirlenmiştir. Bu değerlendirmenin ışığında, ES'nin Türk orman endüstrisi için uygulanabilirliğine ilişkin bir SWOT analizi sunulmuştur. SWOT analizi sonuçları, Türkiye orman ürünleri sektörüne dayalı ES ağları kurmanın mümkün olduğunu göstermektedir. Ancak işletmeler, ES hakkında farkındalık yaratarak bu ağlara katılmaya teşvik edilmelidir. Bu ağlara katılımı artırmak için vergi muafiyetleri, girdi fiyatlarında indirim gibi destekler tasarlanmalıdır.

29 April 2024 in Mathematical Methods of Operations Research
Verified
Journal Article
Closed access
PDF file
GDGülesin Sena Daş
Gülesin Sena Daş
FGFatma Gzara
Fatma Gzara